Alexander Mark Richardson, M.D.
Diagnostic Radiology Physician · Honolulu, HI
Alexander Mark Richardson, M.D. is a diagnostic radiology physician with a practice address in Honolulu, Hawaii, and NPI 1487997490, issued on Mar 28, 2013. Check the license (Hawaii MD-20355, as entered in NPPES) on the Hawaii Medical Board; the Medicare figures below come from public CMS files.
- Name
- Alexander Mark Richardson
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- MD-20355 HI
Self-reported in NPPES; status is on the state search - Practice location
- 888 S. King St, Honolulu, HI 96813
- Phone
- (808) 522-4220
- Enumerated
- Mar 28, 2013
- Record last updated
- Oct 2, 2025
- Fax
- (808) 522-4240
- Medicare enrollment
- Enrolled (PECOS I20190625003956); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 166 in Hawaii → Look up another NPI →
Also registered at 888 S. King St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Iris Nagamine, M.D.Internal Medicine Physician1780926261
Verify Alexander Mark Richardson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersHawaii Medical Board
Search for license MD-20355Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 86.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
One hospital affiliation
- Straub Clinic And HospitalHonolulu, HI · Acute Care Hospitals4 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Alexander Mark Richardson among 166 diagnostic radiology physician records in Hawaii
Alexander Mark Richardson, M.D. is one of 166 diagnostic radiology physician records with a practice address in Hawaii. 60% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 91% of them.
- NPI issued2013 · 91% of these records are older, 8% newer
- In a Medicare fileYes · 60% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2013 · median 2002 among the 91 with a school on file
- Record last updated2025 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in Hawaii
There are 166 diagnostic radiology physician records in Hawaii.
All 166 in Hawaii → Every provider in Honolulu → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Peter Balkin, M.D.Honolulu, HI 968131104921725
- Donald Blair, MDHonolulu, HI 968131477523710
- John Cieply, MDHonolulu, HI 968131326098740
- Richard Dejournett, M.D.Honolulu, HI 968131982691341
- Craig Hamasaki, MDHonolulu, HI 968131588614523
- Peter Holt, MDHonolulu, HI 968131598728891
- Paul Isenbarger, M.D.Honolulu, HI 968131134193980
- Lance Knecht, MDHonolulu, HI 968131417937418
Common questions
What is Alexander Mark Richardson, M.D.'s NPI number?
Alexander Mark Richardson, M.D.'s National Provider Identifier (NPI) is 1487997490, issued on Mar 28, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Mark Richardson, M.D. located?
The NPPES record lists a practice address at 888 S. King St, Honolulu, HI, 96813. Phone: (808) 522-4220. Providers update this record themselves, so call before visiting.
How can I verify Alexander Mark Richardson, M.D.'s license?
NPPES lists Hawaii license number MD-20355, as entered by the provider. Search the Hawaii Medical Board at https://cca.hawaii.gov/pvl/boards/medical/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Alexander Mark Richardson, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.